For over 50 years, Formsprag Clutch has been the recognized leader in designing, manufacturing, and delivering dependable long-lived Overrunning Clutches to the power transmission markets. By offering the broadest range o......For over 50 years, Formsprag Clutch has been the recognized leader in designing, manufacturing, and delivering dependable long-lived Overrunning Clutches to the power transmission markets. By offering the broadest range of both Sprag and Ramp & Roller type overrunning clutches and backstops available in the world, Formsprag Clutch, together with its sister company Stieber Clutch in Germany, is the worlds leading authority for solving applications requiring Overrunning Clutches.